Range-boiler.



M. GERST'EIN.

RANGE BOILER. ABPLIQATIQH FILED FEB. 11, 1908.

' rammed Sept 29, 1908.

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nsirnn STATES PATENT onnion.

MAURICE GERSTEIN,

OFQCHELSEA, MASSACHUSETTS, ASSIGNOR OF ONE-THIRD TO HEINAN GERSTEIN, OF CHELSEA, MASSACHUSETTS, AND ONE-THIRD TO ABRAHAM COOPER, OF

SOUTH BOSTON, MASSACHUSETTS.

- RANGE-BOTLER.

Specificationof Letters Patent.

Patented Sept. 29, 1908.

To all whom it may concern:

Be it known that I, MAURICE GERSTEIN, a citizen of the United States, a resident of Chelsea, in the county of Sufiolk and State of Massachusetts, have invented a new and useful Improvement in Range-Boilers, of which the following, takeninconnection with the accompanying drawings, is a specification.

y invention is particularly adapted for the construction ofrange boilers, but may be used in the construction of other boilers or tanks, cans and the like, in which great strength and durability are required, and consists in the particular method of joining the cap or bottom, that is, end pieces of the said article to the body part. This construction is shown in the accompanylng drawings,

m which A Figure 1 shows a boiler partly in elevation and partly in vertical section; Fig. 2 is a larger view showing more clearly the manner of joining the cap or head to the-body part of the boiler. j V

In the drawings A represents the boiler as a whole, and it consists of a hollow cylinder B closed at each end, the closure at one end consisting of a head O provided with a cylindrical extension C C C (lithe outer diameter of which is substantially equal to the internal diameter of the said hollow cylinder of which the body part of the boiler is made. Both the cylindrical extension and the end of the hollow cylinder are provided with annular depressions as shown at O B. and 0 B also with adjacent parts C, B? and C B constructed to mutually engage with each other. The end of the hollow cylinder is also made with an inwardly turned flange B constructed to engage with the head as shown at C To further strengthen the boiler I i have a band H, having an inturned flange fitted tightly over the end of the hollow cylinder of the body part of the boiler at B the inturned flange of the band being in holding contactwith the inturned flange of the said hollow cylinder. The band H may be made of polished and highly finished brass and otherwise ornamented to suit the surroundings and furnishings of the place in which the boiler is situated.

K represent'stay rings placed at intervals in the interior of the boiler and serve to prevent collapse in case there is a vacuum formed within the boiler, and they also strengthen the shell or body part.

Claim.

A boiler consisting of a hollow cylinder closed at each end, the closure of one end consisting of a head provided with a cylindrical extension the outer diameter of which is substantially equal to the internal diameter of the hollow cylinder, the cylindrical extension and the end of the hollow cylinder being provided with annular depressions mutually engaging each other, the end of the hollow cylinder being also provided with an inwardly turned flange engaging the head, a band provided with an inturned flange fitted tightly over the end of the hollow cylinder, the inturned flange of the band being in contact with the inturned flange of the hollow cylinder.

' In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses, on this eighth day of February A. D. 1908.

MAURICE GERSTEIN.

Witnesses:

FRANK G. PARKER, JOHN BUGKLER. 

